Answer:
tell me
Step-by-step explanation:
Answer:
0.448 seconds
Step-by-step explanation:
d = -16t² -4t + 412
find t when d = 407
substituting d = 407 into the equation:
407 = -16t² -4t + 412 (subtract 407 from both sides)
-16t² -4t + 412 - 407 = 0
-16t² -4t + 5 = 0 (multiply both sides by -1)
16t² + 4t - 5 = 0
solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with
t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)
or
t = (-1/8) (1 -√21) = 0.448 seconds (answer)
<u>Answer:</u>
Beto will get to the school first.
<u>Step-by-step explanation:</u>
We are given that Delia lives 3/4 mile from school and walks at a pace of
16 minutes per mile.
So Delia takes
12 minutes to reach school.
While Beto lives 3 1/2 miles from school and bikes at a pace of 3 minutes per mile.
So Beto takes
10.5 minutes to reach school.
Therefore, Beto will get to the school first.
Answer:
what is it asking you? don't just show the problem tell us what needs to be done.
Answer:
273.6
Step-by-step explanation:
11.4% of his daily calories intake is from sugar drink.
If he consumes 2400 calories each day , the amouth that comes from sugar drink will be 11.4% /100% x 2400
0.114 x 2400
273.6
So 273.6 calories comes from sugar drinks